JR

John Ravensbergen

NM Ncs Multistage: 1 patents #1 of 6Top 20%
📍 Swan Hills, CA: #2 of 13 inventorsTop 20%
Overall (2017): #364,417 of 506,227Top 75%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9593542 Casing float tool Donald Getzlaf, Marty Stromquist, David Devlin, Doulgas Braden, Travis Harris 2017-03-14